lib/Scaler.h

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00001 /*
00002  *  Qtstalker stock charter
00003  *
00004  *  Copyright (C) 2001-2007 Stefan S. Stratigakos
00005  *
00006  *  This program is free software; you can redistribute it and/or modify
00007  *  it under the terms of the GNU General Public License as published by
00008  *  the Free Software Foundation; either version 2 of the License, or
00009  *  (at your option) any later version.
00010  *
00011  *  This program is distributed in the hope that it will be useful,
00012  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
00013  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
00014  *  GNU General Public License for more details.
00015  *
00016  *  You should have received a copy of the GNU General Public License
00017  *  along with this program; if not, write to the Free Software
00018  *  Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307,
00019  *  USA.
00020  */
00021 
00022 #ifndef SCALER_HPP
00023 #define SCALER_HPP
00024 
00025 #include <qstringlist.h>
00026 #include <qmemarray.h>
00027 
00028 class Scaler
00029 {
00030   public:
00031     Scaler ();
00032     ~Scaler ();
00033     void set (int ht, double h, double l, double lh, double lr, bool lf);
00034     int convertToY (double);
00035     double convertToVal (int);
00036     void getScaleArray (QMemArray<double> &);
00037     double getLogScaleHigh ();
00038     double getLogRange();
00039     int getHeight ();
00040     bool getDateFlag ();
00041     bool getLogFlag ();
00042     double getLow ();
00043 
00044   protected:
00045     int height;
00046     bool logScale;
00047     double scaleHigh;
00048     double scaleLow;
00049     double logScaleHigh;
00050     double logRange;
00051     double range;
00052     double scaler;
00053     QStringList scaleList;
00054 };
00055 
00056 #endif